Tri-Colored Lens For Spectacles
First Claim
1. A specially tinted lens for spectacles worn by a pilot for use while flying an airplane, said lens comprising:
- a lens body having at least two distinct, contrasting tintings between at least three fields of vision;
a first tinting for a far field of vision to prevent high illumination from outside said airplane'"'"'s cockpit from entering said pilot'"'"'s eyes;
a second tinting for an intermediate field of vision to enable said pilot to easily see a dimly illuminated instrument panel; and
a third tinting for a near field of vision to enable said pilot to easily view maps and other information.
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Accused Products
Abstract
A specially tinted lens, a tri-colored lens for spectacles and sunglasses for use in flying airplanes. A far field of vision has a first tinting, such as green, to reduce the light from a sunlit sky, over sunlit cloud tops, or in clouds, which enables an aircraft pilot to easily see out of the cockpit into highly illuminated environments. An intermediate field of vision has a second tinting, such as yellow, to enable the pilot to easily see a dimly illuminated instrument panel as compared to outside the aircraft. A near field of vision has a third tinting, such as neutral in color, to enable said pilot to easily view maps and other information.
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Citations
22 Claims
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1. A specially tinted lens for spectacles worn by a pilot for use while flying an airplane, said lens comprising:
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a lens body having at least two distinct, contrasting tintings between at least three fields of vision; a first tinting for a far field of vision to prevent high illumination from outside said airplane'"'"'s cockpit from entering said pilot'"'"'s eyes; a second tinting for an intermediate field of vision to enable said pilot to easily see a dimly illuminated instrument panel; and a third tinting for a near field of vision to enable said pilot to easily view maps and other information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tri-colored lens for spectacles, said lens comprising:
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a lens body having three distinct and contrasting colored tintings for three fields of vision; a first colored tinting having a filter category number between 2 and 6 (transmittance between 25% and 1.56%), averaged over the visible spectrum; a second colored tinting having a filter category number less than or equal to said filter category number of said first colored tinting, averaged over the visible spectrum; and a third colored tinting having a filter category number greater than or equal to said filter category number of said second colored tinting and less than or equal to said filter category number of said first colored tinting, averaged over the visible spectrum. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. Sunglasses, comprising:
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a frame; two lens bodies, each having three distinct and contrasting colored tintings; a first colored tinting having a filter category number between 2 and 6 (transmittance between 25% and 1.56%), averaged over the visible spectrum; a second colored tinting having a filter category number less than or equal to said filter category number of said first colored tinting, averaged over the visible spectrum; and a third colored tinting having a filter category number greater than or equal to said filter category number of said second colored tinting and less than or equal to said filter category number of said first colored tinting, averaged over the visible spectrum. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification